Cloud Infrastructure Engineer (Southampton)

Job Description

hackajob is collaborating with Ordnance Survey to connect them with exceptional professionals for this role.

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Cloud Infrastructure Engineer

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Fulltime | £43,918.00 - £51,238.00 (dependent on experience)

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OSHQ - Southampton Hybrid

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About OS

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Join us in building the cloud platform that powers the geospatial data used across government, business, and everyday life.

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Ordnance Survey is the national mapping agency for Great Britain, delivering worldclass geospatial data and services that underpin innovation and decision making across government, business, and everyday life. Our engineering teams build and operate the cloud platforms and tools that enable OS to deliver accurate, reliable data at scale — helping millions of people and organisations every day.

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We’re passionate about using modern technology to make a meaningful impact, and we’re looking for engineers who share that enthusiasm.

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Our Principles

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At OS, how we work matters just as much as what we deliver. Throughout our hiring process we will assess competence assessing alignment in how you:

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• \nClear the path – Cut the noise, simplify and remove blockers so work can move at pace \n

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• \nSeek the story – Listen fully, build understanding, fact‐check assumptions and speak up \n

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• \nDo what matters – Focus on value, make deliberate stop/start/continue decisions, and recognise the contribution of others \n

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About the role

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We are looking for a skilled Cloud Infrastructure Engineer to play a key role in designing and implementing Azure Landing Zones (ALZ) within a modern, enterprise-scale environment.

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This is an exciting opportunity to help shape a secure, scalable, and compliant cloud platform, enabling teams to deliver services confidently and efficiently in Azure.

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You will work across engineering, security, and platform teams to build reusable infrastructure patterns, automate deployments, and embed good practices aligned with Microsoft’s Cloud Adoption Framework.

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Important:

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Please note that due to the nature of this work - this role is conditional on holding or subsequently passing National Security Vetting SC Clearance prior to appointment.

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Key Responsibilities

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• \nDevelop and maintain Infrastructure as Code (IaC) using Bicep and Terraform \n

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• \nAutomate platform deployments via CI/CD pipelines (Azure DevOps) \n

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• \nConfigure and manage management groups, subscriptions, and governance controls \n

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• \nMaintain networking components including hub-and-spoke, Azure Firewall, and private connectivity \n

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• \nEmbed security and compliance controls (e.g., RBAC, PIM, policies, Defender for Cloud) \n

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• \nCollaborate with security, operations, and application teams to onboard workloads \n

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• \nTroubleshoot platform issues and continuously improve reliability, governance and security \n

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• \nManagement and security hardening of Virtual Machines using Desired State Configuration \n

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• \nMaintenance of centralised tooling to build Virtual Machine images using Image Builder / Packer. \n

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Required Skills & Experience

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• \nExperience using Microsoft Azure \n

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• \nKnowledge of: Azure networking (vNets, DNS, Firewall, Private Endpoints) \n

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• \nIdentity & access management (Entra ID, RBAC, PIM) \n

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• \nGovernance (Azure Policy, Defender for Cloud, cost management) \n

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• \nExperience with Infrastructure as Code (Bicep or Terraform) \n

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• \nFamiliarity with CI/CD pipelines and DevOps practices \n

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• \nSolid troubleshooting and problem-solving skills \n

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• \nAbility to write user friendly documentation for an engineering audience \n

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Desirable

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• \nHands-on experience with Azure Landing Zones or enterprise-scale cloud environments \n

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• \nExperience with Azure Landing Zone Accelerator or CAF implementation \n

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• \nKnowledge of security frameworks (NCSC guidance, CIS benchmarks, ISO 27001) \n

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• \nScripting skills (PowerShell, Azure CLI, or Python) \n

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• \nUnderstanding of DNS, hybrid connectivity, or enterprise networking \n

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• \nAzure certifications (e.g., AZ-104, AZ-305, AZ-500, AZ-700) \n

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• \nExperience of Windows and Linux provisioning and security hardening. \n

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What’s important to us

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• \nCompetent use of source control and editors/IDEs \n

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• \nGood grasp of cloud computing principles \n

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• \nPassion for mentoring and sharing knowledge with others \n

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• \nEnthusiasm for learning new skills and staying up to date. \n

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• \nThriving in an agile, collaborative environment \n

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Find out more:

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If you’d like to learn more about the role and the people with whom you’d be working, we are hosting two open sessions on Teams:

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Session 1: Friday 26 June - 12:30-13:10

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Session 2: Wednesday 1 July 17:30-18:10

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These sessions are informal, completely optional, drop in when you can, and do not form part of the interview process. They are an opportunity to learn more and to ask questions. If you can’t make the whole session, feel free to join when you can. The sessions will not be recorded.

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The Rewards

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We want you to love what you do and feel supported to do your best work.

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Our benefits include:

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• \nCompetitive salary and pension (OS contribute up to 12.07%)\n

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• \nPerformance‐related bonus (where applicable) \n

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• \n28 days annual leave plus bank holidays (increasing with service) \n

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• \nEnhanced family leave, including paid partner leave \n

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• \nHybrid and flexible working options \n

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• \nLearning and development support, coaching and mentoring \n

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• \nFree subscription to OS Maps and access to wellbeing support \n

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• \nVolunteering leave and matched fundraising \n

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Location:

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We have a fantastic HQ in Southampton, and OS promotes Hybrid Working where you will be required to spend 50% of your working hours in person at HQ.

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Interview Process

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• \nStage 1 - Microsoft Teams Introduction (approx. 15mins) w/c 20th July 2026\n

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• \nStage 2 – Competency based Interview (in person at OSHQ) w/c 27th July 2026\n

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Security

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Please be advised that this role will require additional security vetting.

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OS conducts pre-employment checks for anyone made an offer of employment, including identity, right to work, employment history and criminal record checks (via Disclosure & Barring Services (DBS).

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Closing date: Sunday 12th July 2026 at 23:59pm

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Inclusion at OS

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Research indicates that women, individuals with disabilities, LGBTQ+ community members, neurodiverse individuals, and people from ethnic minority backgrounds often hesitate to apply for jobs unless they meet every single qualification. At Ordnance Survey, we are dedicated to fostering a diverse, inclusive, and genuine workplace where everyone can thrive.

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If you’re enthusiastic about this role but your experience doesn’t perfectly match every qualification in the job description, we encourage you to apply anyway. You might be the ideal candidate for this or other roles within Ordnance Survey.

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We are happy to consider any reasonable adjustments that people may need during the recruitment process, and you will be asked whether you require any during the application process.

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Skills required for this role:

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Computer Coding, Computer Programming, Delivery Methodologies, Software Components, Software Development, Software Engineering, Troubleshooting